Which step is typically included in the intervention to stop deterioration on a CAT 4 item?

Which step is typically included in the intervention to stop deterioration on a CAT 4 item?

• A. Major structural overhaul
• B. Complete disassembly
• C. Surface prep and touch up
• D. No action required

Answer: (C)

Stopping deterioration for a CAT 4 item relies on restoring the protective barrier with surface preparation and touch-up. By cleaning the area, removing corrosion products, and lightly abrading the surface for good coating adhesion, you reapply primer and the protective coating in the affected spot. This targeted, minimally invasive repair reestablishes a continuous protective layer, preventing further corrosion in localized deterioration. More invasive actions like a major structural overhaul or complete disassembly are not needed at this level, and taking no action would let the deterioration continue.

Stopping deterioration for a CAT 4 item relies on restoring the protective barrier with surface preparation and touch-up. By cleaning the area, removing corrosion products, and lightly abrading the surface for good coating adhesion, you reapply primer and the protective coating in the affected spot. This targeted, minimally invasive repair reestablishes a continuous protective layer, preventing further corrosion in localized deterioration. More invasive actions like a major structural overhaul or complete disassembly are not needed at this level, and taking no action would let the deterioration continue.